Thanks everyone, it worked great. Windows Store is back with no errors now and I've everything's as it was.
dalchina
Thanks for the note, I'll do these things

Thanks for the infos, Brink and Cliff S ! :D

I remember when I upgraded to 10 from 8.1, using Media Creation Tool. And didn't lose anything by choosing the 'Keep personal files and apps' option....

Hey everyone !

I was having some problems with Windows Store

First of all
I got error 0x800072efe
Looked all over the Internet. Finally fixed it.

Then started getting error 0x80070005....